Keystones — Cornerstone
Five GCSE retrieval questions · 3 October 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 70 + 61
Answer: 70 + 61 = 131 -
2. Algebra
Solve: x + 13 = 20
Answer: x = 7 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 10cm and 10cm
Answer: 50cm² -
4. Ratio
Simplify the ratio 10:30
Answer: 1:3 -
5. Statistics
Find the range of: 16, 19, 14, 25, 24
Answer: 11